Reversible Color Change Humidity Indicator

Reversible Color Change Humidity Indicator

Chunwang Humidity Paper Blue To Pink Various kinds of humidity indicator card can be choosed Attribute Color: blue to pink, yellow to azure, brown to azure. Dots: 3dots, 6dots, 7dots(40%-100%), 10dots. Application: CPU, circuit board,semiconductor, LED light strips, transforman, protective...

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Product Details

Factory Price Humidity Indicator Sheet


HOW DO HUMIDITY INDICATOR CARDS WORK?

Humidity indicator cards are impregnated with a solution of cobalt chloride that has been carefully mixed to change color from blue through various shades of magenta - red, to a pink. These cards are not precision indicators. However, they are very good at telling you the maximum possible humidity in a container. For example if all of the dots are deep blue on a card which is a 10%- 60% card than you can be assured that the humidity in that container is below 10%. This is very important for some products and household items because as long as the humidity is below 40%, basic corrosion (rust) will not occur. Neither will mildew or mold in clothing or paper products. Finally, all sophisticated electronics: video cameras, computers, SLR cameras, sophisticated instruments etc. enjoy a much longer and more reliable life if they are maintained at a very low relative humidity. For example, at the bottom of this page are cards that were developed specifically for the electronics (computer chips) industry. These companies require that the humidity in their shipping packages be below 10% and as of the guidelines established in the fall of 1999 are striving to maintain humidity below 5%.

Attribute

Color: blue to pink, yellow to azure, brown to azure.

Dots: 3dots, 6dots, 7dots(40%-100%), 10dots.


Application:

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Used in semiconductor and IC/integrated/PCB, packaging of electronic components, sensitive components, organic materials, munitions, optical instruments, metal materials, composite materials, medicine, warehousing and vacuum packaging of various products.

Keep in mind that these cards will only indicate the relative humidity. If you want to keep the humidity low in your package whether storing electronics, a wedding dress heirloom, old photographs, or personal items, you will need a desiccant packet to do this.


Packing quantity:

250pieces/can, 12cans/carton

Sale in full carton

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Established in 1998, Chunwang is well-known as one of the leading manufacturers and suppliers of reversible color change humidity indicator in China. During the past two years, we have introduced advanced equipment and technology into our factory. Please be free to buy our cheap products made in China.
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